ambassador christopher stevens and three others when the embassy in beaning gallons discis with abeen benghazi was attacked. >> reporter: president called it an outrageous and shocking attack. four americans dead, including ambassador chris stevens. >> we will work with the libyan government to bring to justice the killers who attacked our people. >> reporter: on tuesday people firing automatic weapons fired and all four americans died from smoke inhalation. no one was shot. libya carried chris' body to the hospital and they helped rescue and lead other americans to safety. >> reporter: foreign service officers around the world are on high alert. president obama ordered increased security due to concerns that the rest could spread. >> every day all across the world, american diplomats and civilians work tirelessly to advance the interest and values of our nation. >> reporter: the president showed his appreciation. u.s. officials feared the protest may have been triggered by this antimuslim low budget film. it was produced in the u.s. there is absolutely no justification to this type of sense l